David h



DAVID H. BA LL, 0F vSINNAMAHONING, PENNSYLVANIA.

Lt'fers'zatm No. 78,508, ma June 2,1868.

IMPROVEMENT IN SHINGLE-MACHINES.

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TO ALLYWHOM IT MA1; CONCERN:

' Be it known that I, DAVID H. BALL, of Sinnamahoning, in the' county VofCamex-on, and State of Pennsyl- Vania, have invented certain new and useful Improvements in Sliingle-Sawing Machines; and-I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this speeication, in which- Figure 1 is a plan view of a sawing-machine,` constructed with my improvements attached.

Figure 2 isl a sectional view ofthe same, on the line X`X.

.Figure 3 is asectional view of the same, on the line Y Y.

Figure 4.is a View otone side of the machine.

Figure 5 is a perspective representation of the guide, marked I I', in iig.v 1.

Figure 64 is an end view ofthe carriage, marked, K, in iig. l.

The nature of myimprovements has reference to several distinct parts ofy a shingle-sawing machine, the construction and operation of which are clearlyset forth in the following detailed description.

In the drawings, the parts marl-red A A A constitute the main frame of the machine. Alis a centre partition, running` lengthwise 'of said frame, and A2 is a. small square frame adjoining.

B is the sa\\shaft, ri1nning across the large and smallfram-es A A2. Bl is :he circular saw, and B2 is a belt-pulleyion the saw-shaft, to which the power is applied. B3 is' a fly-wheel, on the same shaft, vopposite the pulley, and revolving within the small frame Ai.. I

C C are alternate speed-cones, connected by a belt, C. The cone C is journalled within the -trame A, on the same shaft with which is a belt-pulley, a, connected by belt a with the saw-shaft. The other conc is jonrnallcd in boxes dl d, .attached tothe top ofthe frame A and centre partition Al.

d2 represents a. pinion, on the shaft of cone C', gearing with :L larger tooth-wheel, d3, on the crank-shaftd4,

said crank-shaft revolving in boxes e d. I The box il is provided with slotsff, so that by moving it, the wheels d2 d3 may be geared and ungcared at pleasure, whiqhis done by means of the rod G, connected with the 'nox all, thence passing, as shown, to the opposite end of the framewhere it is attached to aisingle or double lever, G, working in thc frame A.

H is a slanting block, below the alternate cones, provided with a hollow screw, t, in the block, or in a box inserted therein, and operated by crank-screw', H', turned from the outside of the frame. This crank-screw rests within the frame, as clearly shown in the drawings. The `said block is also providedwith arms L t '7L 7i.,- on both sidesithereof, whichl extend upwards on both sides of the belt C, and which act as regulators thereof', movement to either side being obtained by turningthe crank-serew. y

The parts'marked I I constitute a lsaw-guide, the ends and centre of which rest in suitable recesses in the frame A and centre partition A1 itl are curved arms, th ends of which touch the sides of the saw. i3 isla circular opening, between the said arms, within which the sawteeth pass.

j is-a slot, through one end ofthe guide, within Iwhich is a bolt, j', and by which the guide is bolted to thel frame. A recess,j, is cut in thel frame, to admitftheiinsertion or withdrawal of the bolt.y m-m are keys, tightening the ends'ot` the guide in their position. The saw is guided by driving the guide from either side of the frame A. V'.llre 'guide is constructed -in two parts, I and I', in order that the smaller vpart l1 `may be driven separately against the saw, as thewear on the end of the arm may necessitatc.- i

K represents the carriage, uponwhich the block to be sawed is placed. lc lc are the end braces of the carriage, somewhat thicker than the carriage, und provided with grooves k le', clearly shown in tig. 6. The carriage slides on roundmetal bars n n n n, running lerrthwise of the main frame A and partition A1, to which'. they a'reattaohed, by curving their ends downwards, and inserting them in the frame and partitionor in any other suitable manner, seas toleave the part of the bars upon which the carriage slides above and free` therefrom.

.L n n are metal plates, on the under side ofthe braces 7c 7c, to prevent any other than Ythe desired move'-l mont tothe carriage. roller, L, is placed in tho main frame A, upon which the carriage moves, preventing strain, and reducing friction, as seen in iig. i'.

o o o o areinetal plates, bolted across "the-'upper face of the carriage K'. p represents-the head-block, to

ywhich are attached the dogs pp. The dogs are so` constructed as to rest, as shownin drawings, and slide on the metal plates o o o o, by which they are `prevented from springing.

. P P are slides for the head-block, whichvith the head-'block and set-works, are constructed upon the same principle as-those of mostshin'glc-sawing machines with horizontal feed. The head-block on my machine, however, extends far enough to each sideas to permit of the use of setracks\pp intwo positions cn each side of thehead-bloek; the racks being ladjusted'on the inner knobs q g, for short shingles, and 'on the outer knobs q q for long shingles; lthe setrod 9' being provided with an extra. pair of set-buttons, r" r. The ruck's used in sawing short shingles may have fine teeth, while those for'long shingles may have coarse teeth.

ttt t are curved standards, holding the racks P P in position. The racks may be removed by moving the head-block forward, and releasing the racks from the knob g q. l p

On one end of thc`setrod r a square biock, s, or nut is shown, against -wliich rests a spring, a', attached tothc carriage K. When the set-rod is notin motion, a flat surface or' edge of the'bloclc is at all timcs'presented to the spring, 'which presses aganstit. AThis block is so arranged, in reference to the set-block s" and set-buttons r r', that after each distinct movement of the heed-block, the' buttons 1' r and set-block s will bcin the proper position to receive another; the buttons, when not actually operating on the` racks, being'A entirely free therefrom.

The carriage K connects with the crank-shaft d, by means of a pitman, k3, and crank d5.

What I claim as my invention, and desire to secure-by Letters Patent, isfv 1. The plates o o, when arranged in relation to the head-block p,nnd dog p p', said dogs being constructed to rest or slide on thelplates, as and for the purpose specified. I

2. The block s, and spring s", constructed and arranged to operete as and for the purpose set forth.

Witnesses:

E. MASI, Tnos. A. CoNNoLLr. 

